Teeth-cleaning instrument



Feb. 12., 1924.

E. L.. CHOTT TEETH CLENIIIG INSTRUMENT Filed oct. 1s 192s WwW/, ZM

EDWARD L. CHOTT, OF CHICAGO, ILLINOIS.

Application filed October 13, 1923. Serial No. 668,263.

To all w/wm t may concern:

Be it known that I, EDWARD L. CHoT'r, a citizen of the United States,and a resident of the city of Chicago, county of Cook, and State ofillinois, have invented certain new and useful Improvements inrleeth-Cleaning Instruments, of which the following is a specification.

My invention relates to new and useful improvements in teeth cleaninginstruments, and has for its object the provision of an improvedconstruction of this character, which is highly efiicient in use andcapable of economical manufacture.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be best understoodby reference to the accompanyingdrawings forming a part of this specification, and in which- Fig. l is aSide view of an instrument embodying the invention shown in position ofuse;

Fig. 2, an enlarged section taken on line 2--2 of Fig. l;

Fig. 3, a similar view showing the parts in process of manufacture;

Fig. 4, a section taken on line 4-4 of Fig. 3, and

Fig. 5, a view similar to Fig. 2, but show` ing a slightly modified formof construction.

The form of construction illustrated in Figs. l to 4, inclusive,comprises a metallic head 6 having a socket 7 in one end thereof and acentral bore 8 extending through the other end and into the bottom ofsaid socket. A contact piece 9 in the form of a section of rubber tubingis inserted and secured in said socket. The bore or opening in the tubesection 9 is flared at its outer end 10 to increase the size andflexibility thereof. A stem ll is driven into the bore 8 to form a shankfor the tool and the contact piece 9 is secured in place by swaging thewalls of the socket 7 inwardly as shown at 12 in Fig. 2. In Fig. 3, theparts are shown as assembled and before the swaging operation isperformed. By this arrangement a simple and effective tool is providedfor usel by dentists in cleaning teeth. The device is capable ofeconomical manufacture and may, therefore, be supplied to dentists atsuch small cost that they can afford to discard the instrument after useon one patient only. The fiare 10 in the bore of tube 9 increases theflexibility of the edge of the contact piece and thus facilitatesapplication to the tooth and under the gums of the patient. The abrasiveused in cleaning teeth will accumulate in the bore of the tube 9 andautomatically feed to the contact edge thus greatly facilitating theapplication of the abrasive. A

In the modified construction illustrated in Fig. 5, the tubing 9 issecured in place by swaging a groove 13 in the walls of socket 7.Otherwise the construction is identical with that already described.

The tool is mounted for use in the ordinary flexible shaft 14C,generally in use by dentists, by inserting the stem or shank 11 in theusual way.

Vhile I have illustrated and described the preferred forms ofconstruction for carrying my invention into effect, these are capable ofvariation and modification without departing from the spirit of theinvention. I, therefore, do not wish to be limited to the precisedetails of construction set forth, but desire to avail myself of suchvariations and modifications as come within the scope of the appendedclaims.

Having described my invention, what yI claim as new and desire to secureby Letters Patent is:

l. A device of the class described comprising a head having a socket atone end and a bore extending through the other end thereof and into thebottom of said socket; a contact piece inserted in said socket, thewalls of said socket being compressed inwardly to compress the insertedportion of said contact piece; and a stem inserted in the bore in saidhead, substantially as described.

2. A device of the class described comprising a head having a socket atone end and a bore extending through the other end thereof and into. thebottom of said socket; a tubular contact piece inserted in said socket,the walls of said socket being compressed inwardly to compress theinserted portion of said contact piece; and a stem inserted in the borein said head, substantially as described.

3. A device of the class described comprising a head having a socket atone end and a bore extending through the other end thereof and into thebottom of said socket;

a tubular-contact piece in the form of a Sec* In testimony whereof Ihave signed my tion of rubber tubing inserted in said socket, name tothis speciioation in the presence of 10 the Walls oit' said socket beingcompressed two subscribing Witnesses.

inwardly to compress the inserted portion of the tube; a stein driveninto the bore in EDWARD L. CHOTT. said head, and the bore in said tubebeing Witnesses: flared at its outer end, substantially as de- JOSHUA R.H. POTTS,

scribed. FREDA C. APPLETON.

